KBD Series Manual 63
catch any water that is contained inside the unit.
Unscrew the water lter. Rinse the lter to remove
any debris. Install the lter and open the isolaon
valves.
Operate the PRV manually once a year. In doing so, it
will be necessary to take precauons with regard to
the discharge of potenally scalding hot water under
pressure. Ensure discharge has a safe place to ow.
Contact with your body or other property may cause
damage or harm.
Verify proper operaon aer servicing. The burner
must ame evenly over the enre surface when
operang correctly. The ame must burn with a clear,
blue, stable ame. See the parts breakdown of the
burner for the locaon of the view ports.
The ame paern should be as shown in the gures
below:
Make sure in case of freezing weather that the water
heater and its water lines are adequately protected to
prevent freezing. Damage due to freezing is not
covered by the warranty. Refer to the secon on
Freeze Protecon. The unit may be drained manually.
However, it is highly recommended that:
drain down solenoid valves be purchased and
installed that will automacally drain the unit if
power is lost. These are available in a kit,
104000059. (The condensate trap drain plug and
water drain plug are not aected by the auto
drain down solenoid valves and will have to be
manually opened.)
a surge protector with terminals be purchased
and installed which allows the solenoid valves to
operate if the unit is disabled due to a diagnosc
code. This is available as 104000057.
These recommendaons are intended to suggest
pracces that are eecve for winterizing the water
heater. They should be used as a guide only. No
liability is assumed for any issues resulng from the
use of this informaon.
GAS
Shut o the gas to the water heater. It is generally
preferable to shut o the gas service to the enre
locaon if gas is not going to be used.
WATER
Shut o the cold water supply to the water heater. It
is generally preferable to shut o the water to the
enre locaon if water is not going to be used.
Drain the water heater by opening the drain valves on
the cold water line and hot water line.
Open several hot water taps and remove the lter
assembly at the water inlet in order to allow room for
expansion in case there is water in the lines that
freeze.
ELECTRIC
Disconnect the power supply by either unplugging the
electrical cord or by turning o the circuit breaker to
the water heater to prevent potenal damage from
irregular power surges or interrupons.
VENT TERMINATION
Place a cover over the vent terminaon (intake and
exhaust) if it can be safely accessed. The cover should
be easy to apply and remove. This will prevent
debris, leaves, and small animals from entering the
venng and water heater which could cause air ow
issues upon return to service.
Tesng the pressure relief valve should only be
performed by a licensed professional. Water
discharged from the pressure relief valve could cause
severe burns instantly or death from scalds.
WARNING
FRONT VIEW
YELLOW FLAME
FLAME ROD
FRONT VIEW
BLUE FLAME
FLAME ROD
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